2021-08-03 at 11:08 am
#1198
Hamid
The lamp 60W will be brighter than 100W; because: R60W > R100W & (P60W = R60W.I2 ) > (P100W = R100W.I2) But let us assume the lamp 60w is installed in room A and another lamp is located in room B with same electrical circuit. For maximum lighting achievement in room B, which lamp (rated power) shall be permuted with lamp 100w?